catalyst - Definition & Meaning

lyst

复数形式

catalysts

催化剂, 活化剂

(chemistry) a substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself

Enzymes are naturally occurring biological catalysts that allow complex metabolic reactions to proceed efficiently in living cells.
酶是天然存在的生物催化剂，可使复杂的代谢反应在活细胞中高效进行。
Platinum nanoparticles acted as an effective catalyst for the reaction, significantly lowering the activation energy needed.
铂纳米颗粒作为反应的催化剂，显著降低了所需的活化能。
In the Haber process, iron is used as a catalyst to promote the synthesis of ammonia from nitrogen and hydrogen gases.
在哈伯法中，铁被用作催化剂以促进从氮气和氢气合成氨。

同义词：

反义词：

催化剂, 触发因素

a person, thing, or event that provokes or accelerates change or activity by introducing new perspectives or actions

The new policy acted as a catalyst for reform within the organization.
新政策作为组织内部改革的催化剂。
The unexpected merger served as a catalyst for industry-wide changes.
意外的合并成为整个行业变革的催化剂。
The protest was a catalyst for the government to address long-standing issues.
抗议是政府解决长期问题的催化剂。
The economic crisis acted as a catalyst for major financial regulations.
经济危机成为主要金融法规的催化剂。
The discovery of the artifact served as a catalyst for renewed archaeological exploration.
这件手工艺品的发现成为重新开始考古探索的催化剂。